And in an interview with Splashmagazine, she has put all the blame for her old ways on the makers of the hit MTV programmes.

Cameras
caught her Laguna Beach antics in all of their glory, showing her
fighting constantly with on-off boyfriend Stephen Colletti, trading
barbs with Lauren Conrad and dancing on a bar during a spring break trip
to Cabo San Lucas in Mexico.

Explaining
her actions, the 26-year-old said: 'The producers were really c***py to
me. I felt like everybody was against me and manipulating me, and that
forced me to be a b****.

Blonde ambition: Kristin recalls her stint on reality show Laguna Beach in an accompanying interview with the magazine

She then tried to branch out by moving to
the bright lights of Los Angeles, only to find her tarnishedimage made
it tough to find work in the entertainment industry she was desperate
to join.

The then wannabe actress said she moved so 'people could forget about the Kristin from Laguna Beach.'

But
despite taking a number of bit part roles such as guest-starring on
CSI: NY and Veronica Mars, she didn't have too much success.

Look through any window: Kristin posed in a flouncy midi-skirt, platform heels and a sleeveless top for one shot

Thinking pink: The new mother of a baby son showed her relaxed side in a layered pale pink skirt and beaded sweater

Revelations: Kristin appears on the cover of Splash magazine

She said: 'I was known as the bad girl, And once you have that image, it’s so hard to change it.'

And
what better way to get rid of it than returning to her former persona
in 2009, and clashing again with her old foe Conrad on The Hills

She said: 'l decided to have fun with it this time. I embraced it, and played a caricature of myself.'

This time the action was amped up even further by what she describes as a carefully conceptualised show where the producers invented entire plot lines.

She said, 'They did everything short of handing us a script,' and admits she never dated Justin “Bobby” Brescia, her infamous bad-boy love interest.

She said: 'I had two lives. My Hills life and my real life. People are always surprised by how nice I am in real life.'

She has left her old ways behind her and
is now most concerned with being a mother to her six-month-old son and
spends the football season in the new family house in Winnetka.

Lights, camera, action: Kristin looked pretty as she posed in a sparkling pink dress against a white backdrop

Low key preparation: A candid snap shows the reality show star being prepped for the shoot

Kristin said: 'Our world revolves around Camden. I’m a suburbanite now. I didn’t know anything about football when I met Jay. But now I won’t miss a home game.

In the off-season the trio relocate to Nashville, where Jay went to college, and where they have a second home.

When the quarterback, who she has dated on and off since 2010, retires, they plan to settle there permanently and she said she wants to have at least three more children.

She said: 'I’ve always wanted to be a mom. I’ve learned that it means I have to be totally selfless. But it’s the most rewarding thing in the world.'